I'm still happily using Windows 7 on my work laptop and would very much like to access my passwords. Now I am forced to use version 3 and sync the passwords manually. Is there a way to install the Windows client for version 5 on Windows 7?

I am also an msecure 5.5 user looking for an alternative to Windows 10 (for me, Win10 is too network-invasive of my PC to feel secure,  and of course Windows is the obvious hacking target for all the crooks out there). So I am now migrating to Linux (Mint, i.e. basically Ubuntu). A shame that the msecure folks did/do not provide an .exe version of msecure 5.5,  as that would presumably be (more or less) accessible to Linux users via Wine.

But I understand msecure's commercial philosophy, most of the market is with Windows 10, so they need focus on that to survive. Those of you out there making irate comments should cut them some slack...

Another Win7 user here, not planning on switching main workstation to Win10 any time real soon (if it ain't broke...). So far mSecure is first program I use which is now incompatible in a new version.  M$ can say all they want about ending support, but Win7 still accounts for 20-35% of the installed base (depending on who you ask, and that's not counting all the Win Server versions based on Win7).  They've extended support in the past, so who knows what will really happen in a year (enterprises are always slow to adopt).  Ultimately it's up to developers to decide which OSs to support. Dropping Win7+8 is a bit ironic IMHO because out of all the major OSs, Win has always been the easiest to keep backwards-compatible (yes, I'm a software developer also).  Guess it's mSecure v3.5/4 only for us dinosaurs.